Users have had this issue when ingesting rasters into geowave:
http://osgeo-org.1560.x6.nabble.com/maven-shade-and-ZonalStatistics-problem-td5238912.html

Here is an associated gist:
https://gist.github.com/SDeathLeaDer/5f93187a37b75b0a144b

we may need to add the suggested snippet into our pom.